Vaslet, Elise Critical exponents of words over 3 letters. (English) Zbl 1217.68174 Electron. J. Comb. 18, No. 1, Research Paper P125, 8 p. (2011). Summary: For all \(\alpha \geq RT (3)\) (where \(RT (3) = 7/4\) is the repetition threshold for the 3-letter alphabet), there exists an infinite word over 3 letters whose critical exponent is \(\alpha \). Cited in 1 Document MSC: 68R15 Combinatorics on words Keywords:infinite word PDFBibTeX XMLCite \textit{E. Vaslet}, Electron. J. Comb. 18, No. 1, Research Paper P125, 8 p. (2011; Zbl 1217.68174) Full Text: EuDML EMIS Online Encyclopedia of Integer Sequences: a(n) = 0 if n is of the form m*(m+3)/2, otherwise 1.